The Side Effects of Rabies Vaccinations in Pets

The rabies virus attacks the nervous system of humans and other animals and is highly infectious. Luckily, there is a vaccine that can be administered to our pets. Although uncommon, the vaccine may cause serious side affects in your furry friend. These can vary depending on the pet and the type of vaccination administered.

  1. Vaccines

    • Both live and dead vaccines are used currently. Each have their advantages and disadvantages. Modified live vaccines contain a small amount of live virus. This may cause a number of reactions in a pet. In dead vaccines, the virus has been killed off. To be effective, these contain more of the rabies virus per shot. Dead virus vaccines also include additives like aluminum to preserve the vaccine.

    Mild Side Affects

    • After the injection, your pet might appear tired, lethargic or even irritable. A young pet may need some encouragement to eat. Rabies shots are usually given in the hind leg. You might find your pet limping, flinching or snarling when touched in that area. Because the immune system is reacting to the injected virus, your pet's behavior might be affected for a few hours to a few days. Things should continue to improve. It is a good idea to monitor the situation and keep your vet informed if there is any deterioration.

    Moderate Side Affects

    • Dogs and cats may experience some swelling. Your pet might also suffer from itchiness and puffy eyes. This should go away in a day or two. Keep your vet informed; if the swelling gets worse, make sure to take your pet in.

    Severe Side Affects

    • Modified live vaccines can sometimes affect the limbs through the neurological system. However, with proper care, some animals will walk again. The spinal cord and brain can be infected, resulting in encephalomyelitis. This condition may vary because the part of the brain infected may be different. It might begin with a limp and progressively get worse, or you might find one side of your pet's face drooping or tilting.

      Dead vaccines are more likely to cause immune reactions, like anaphylactic shock. If your pet throws up, continues to swell or itch, or has trouble breathing, it is time to take the animal to see the vet. Certain additives may cause the growth of cancerous cells in dogs. Monitor the injected side frequently for growing lumps. Early growths may be treated more successfully.